/// <summary>
///
/// </summary>
public BaseField()
{
m_UpdateValues = new UpdateValue[this.ObjectUpdateFieldCount];
m_PrivateUpdateMask = new UpdateMask( this.ObjectUpdateFieldCount );
m_PublicUpdateMask = new UpdateMask( this.ObjectUpdateFieldCount );
this.Type = ObjectTypes.Object;
this.ScaleX = 1.0f;
}
/// <summary>
///
/// </summary>
/// <returns></returns>
internal UpdateMask ResumePrivateUpdateMask()
{
UpdateMask privateUpdateMask = new UpdateMask( this.ObjectUpdateFieldCount );
UpdateMask returnUpdateMask = m_PrivateUpdateMask;
// 快速交换，避免多线程问题
m_PrivateUpdateMask = privateUpdateMask;
return returnUpdateMask;
}
/// <summary>
///
/// </summary>
/// <param name="mask"></param>
/// <param name="lowestValue"></param>
/// <param name="highestValue"></param>
public static void ModifyUpdateMask( UpdateMask updateMask, int iLowestValue, int iHighestValue )
{
int iBlockCount = ( iHighestValue + 31 ) >> 5;
int iStartingBlock = ( iLowestValue ) >> 5;
for ( int iIndex = iStartingBlock; iIndex < iBlockCount; iIndex++ )
updateMask.Blocks[iIndex] &= m_PlayerVisibility[iIndex];
}
/// <summary>
/// Modifies the specified UpdateMask to filter out all the bits not needed for other players
/// </summary>
/// <param name="mask">The UpdateMask to filter</param>
public static void ModifyUpdateMask( ref UpdateMask updateMask )
{
for ( int iIndex = 0; iIndex < updateMask.BlockCount; iIndex++ )
updateMask.Blocks[iIndex] &= m_PlayerVisibility[iIndex];
}
public static GameObject Import(
USD.NET.Scene scene,
GameObject rootObj,
Dictionary <SdfPath, GameObject> objectMap,
UpdateMask mask,
out List <string> warnings,
List <string> pathsToUpdate = null)
{
// TODO: generalize this to avoid having to dig down into USD for sparse reads.
TfToken brushToken = new pxr.TfToken("brush");
TfToken faceVertexIndicesToken = new pxr.TfToken("faceVertexIndices");
warnings = new List <string>();
// Would be nice to find a way to kick this off automatically.
// Redundant calls are ignored.
if (!InitUsd.Initialize())
{
return(null);
}
// PLAN: Process any UsdStage either constructing or updating GameObjects as needed.
// This should include analysis of the time samples to see what attributes are
// actually varying so they are updated minimally.
UsdPrimVector prims = null;
if (pathsToUpdate == null)
{
prims = scene.Stage.GetAllPrims();
}
else
{
prims = new UsdPrimVector();
foreach (var path in pathsToUpdate)
{
prims.Add(scene.Stage.GetPrimAtPath(new pxr.SdfPath(path)));
}
}
for (int p = 0; p < prims.Count; p++)
{
// TODO: prims[p] generates garbage.
UsdPrim usdPrim = prims[p];
UsdGeomMesh usdMesh = new UsdGeomMesh(usdPrim);
if (!usdMesh)
{
continue;
}
ExportUsd.BrushSample sample = new ExportUsd.BrushSample();
if (mask == UpdateMask.All)
{
scene.Read(usdPrim.GetPath(), sample);
}
else
{
// TODO: Generalize this as a reusable mechanism for sparse reads.
if (mask == UpdateMask.Topology)
{
sample.brush = new Guid((string)usdPrim.GetCustomDataByKey(brushToken));
var fv = usdPrim.GetAttribute(faceVertexIndicesToken).Get(scene.Time);
sample.faceVertexIndices = USD.NET.IntrinsicTypeConverter.FromVtArray((VtIntArray)fv);
}
else
{
throw new NotImplementedException();
}
}
GameObject strokeObj;
Mesh unityMesh;
//
// Construct the GameObject if needed.
//
if (!objectMap.TryGetValue(usdPrim.GetPath(), out strokeObj))
{
// On first import, we need to pull in all the data, regardless of what was requested.
mask = UpdateMask.All;
BrushDescriptor brush = BrushCatalog.m_Instance.GetBrush(sample.brush);
if (brush == null)
{
Debug.LogWarningFormat("Invalid brush GUID at path: <{0}> guid: {1}",
usdPrim.GetPath(), sample.brush);
continue;
}
strokeObj = UnityEngine.Object.Instantiate(brush.m_BrushPrefab);
// Register the Prim/Object mapping.
objectMap.Add(usdPrim.GetPath(), strokeObj);
// Init the game object.
strokeObj.transform.parent = rootObj.transform;
strokeObj.GetComponent <MeshRenderer>().material = brush.Material;
strokeObj.GetComponent <MeshFilter>().sharedMesh = new Mesh();
strokeObj.AddComponent <BoxCollider>();
unityMesh = strokeObj.GetComponent <MeshFilter>().sharedMesh;
}
else
{
unityMesh = strokeObj.GetComponent <MeshFilter>().sharedMesh;
}
//
// Points
// Note that points must come first, before all other mesh data.
//
if ((mask & UpdateMask.Points) == UpdateMask.Points)
{
unityMesh.vertices = sample.points;
}
//
// Bounds
//
if ((mask & UpdateMask.Bounds) == UpdateMask.Bounds)
{
var bc = strokeObj.GetComponent <BoxCollider>();
bc.center = sample.extent.center;
bc.size = sample.extent.size;
unityMesh.bounds = bc.bounds;
}
//
// Topology
//
if ((mask & UpdateMask.Topology) == UpdateMask.Topology)
{
unityMesh.triangles = sample.faceVertexIndices;
}
//
// Normals
//
if ((mask & UpdateMask.Normals) == UpdateMask.Normals)
{
unityMesh.normals = sample.normals;
}
//
// Color & Opacity
//
if ((mask & UpdateMask.Colors) == UpdateMask.Colors && sample.colors != null)
{
unityMesh.colors = sample.colors;
}
//
// Tangents
//
if ((mask & UpdateMask.Tangents) == UpdateMask.Tangents && sample.tangents != null)
{
unityMesh.tangents = sample.tangents;
}
//
// UVs
//
if ((mask & UpdateMask.UVs) == UpdateMask.UVs)
{
SetUv(unityMesh, 0, sample.uv);
SetUv(unityMesh, 1, sample.uv2);
SetUv(unityMesh, 2, sample.uv3);
SetUv(unityMesh, 3, sample.uv4);
}
} // For each prim
return(rootObj);
}
public BaseUpdateData(int changeMask)
{
_changesMask = new UpdateMask(changeMask);
}
public BaseUpdateData(int blockBit, TypeId bit, int changeMask)
{
_blockBit = blockBit;
Bit = (int)bit;
_changesMask = new UpdateMask(changeMask);
}